anyone tried FIRETWEAKER XP?

FireTweaker XP is a tweaking and optimizing software for Mozilla Firefox. FireTweaker XP bundles more than 20 different tweaks to optimize or customize Mozilla Firefox. FireTweaker XP does not contain any spyware or adware, it is 100% clean for your tweaking pleasures. FireTweaker XP currently supports Windows 98/Me, 2000, Xp and 2003. The program does work with Firefox 1.0 (9x or higher)